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PI60685: WMQ ABEND 5C6 00E50002 CSQVUNLX,M=CSQVLFRR,LOC=CSQMLPLM.CSQMMTPRCHIN CHINIT ABENDS5C6 S5C6

A fix is available

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APAR status

  • Closed as program error.

Error description

  • CHIN CHINIT abends with ABEND 5C6 00E50002
    ABN=5C6-00E50002,LOC=CSQMLPLM.CSQMMTPR+000023CE
    .
    DUMP:
    ABN=5C6-00E50002,U=MQPDCHIN,C=W9700.800.ASMC-CSQVUNLX,M=CSQVLFRR
    ,LOC=CSQMLPLM.CSQMMTPR+00002386
    .
    The MTME has been released by CSQMMTIN while CSQMMTPR
    (mark_msg_token processing) is waiting to obtain a latch on it.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
    *                 Release 0 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Application browsing messages from a    *
    *                      queue using MQGMO_MARK_BROWSE_CO_OP or  *
    *                      MQGMO_MARK_BROWSE_HANDLE can generate   *
    *                      abend 5C6-00E50002 in CSQMMTPR.         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The access serialization of browse message marks is incorrect
    and it sometimes allows multiple threads to perform simultaneous
    updates of the same mark resulting in 5C6-00E50002 abend.
    

Problem conclusion

  • The serialization access to the MTME has been corrected
    preventing simultaneous updates to the same MTME.
    000Y
    CSQEMTIN
    CSQMMTIN
    CSQMMTPR
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI60685

  • Reported component name

    WMQ Z/OS 8

  • Reported component ID

    5655W9700

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-04-12

  • Closed date

    2016-08-31

  • Last modified date

    2016-10-03

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    PI68182 UI40510

Modules/Macros

  • CSQEMTIN CSQMMTIN CSQMMTPR
    

Fix information

  • Fixed component name

    WMQ Z/OS 8

  • Fixed component ID

    5655W9700

Applicable component levels

  • R000 PSY UI40510

       UP16/09/20 P F609

Fix is available

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Document Information

Modified date:
03 October 2016